scholarly journals A Cross-Sectional Observation on Maximal Eccentric Hamstring Strength in 7- to 15-Year-Old Competitive Alpine Skiers

Biology ◽  
2021 ◽  
Vol 10 (11) ◽  
pp. 1128
Author(s):  
Kirsten Kiers ◽  
Lynn Ellenberger ◽  
Marie Javet ◽  
Björn Bruhin ◽  
Walter O. Frey ◽  
...  
Keyword(s):  
Age Groups ◽  
Knee Injuries ◽  
Growth Spurt ◽  
Cross Sectional ◽  
Biological Maturation ◽  
Major Injury ◽  
Hamstring Muscles ◽  
Injury Mechanisms ◽  
Anterior Tibial ◽  
Alpine Skiers

Severe knee injuries are common in alpine skiing and the hamstring muscles are known to counteract the anterior tibial displacement that typically accompanies major injury mechanisms. This study aimed to assess the Maximal Eccentric Hamstring Strength (MEHS) of youth competitive alpine skiers during Nordic Hamstring Exercise (NHE) in terms of dependence of sex, age and biological maturation. A total of 246 7- to 15-year-old skiers were tested with respect to their MEHS using an NHE-based measurement device (Vald Performance, Newstead, Australia). Significantly greater absolute MEHS was observed in skiers of the under 15 years (U15) category compared to skiers under 10 years old (U10) (227.9 ± 61.1 N vs. 142.6 ± 28.9 N; p < 0.001), also when grouped by sex. Absolute MEHS was revealed to be lower in U15 females compared to males (213.5 ± 49.0 N vs. 241.9 ± 68.4 N; p = 0.001); in U10 skiers there was no sex difference. For all age groups and sexes, absolute MEHS values were significantly correlated with age and biological maturation (p < 0.001). However, when normalized to body weight such associations disappeared, which is why this is strongly recommended when testing around their growth spurt. Overall, this study established sport-specific normative reference data that may be of interest to researchers and sport practitioners alike.

scholarly journals Remarkably high prevalence of overuse-related knee complaints and MRI abnormalities in youth competitive alpine skiers: a descriptive investigation in 108 athletes aged 13–15 years

2020 ◽  
Vol 6 (1) ◽  
pp. e000738
Author(s):  
Stefan Fröhlich ◽  
Loris Peterhans ◽  
Christoph Stern ◽  
Walter O Frey ◽  
Reto Sutter ◽  
...  
Keyword(s):  
Structural Changes ◽  
Knee Injuries ◽  
Research Centre ◽  
Growth Spurt ◽  
Overuse Injuries ◽  
Systematic Screening ◽  
Effective Prevention ◽  
Trauma Research ◽  
Knee Complaint ◽  
Alpine Skiers

Background/aimCompetitive alpine skiing is known to be associated with a high risk of traumatic knee injuries. However, little is known about the exact prevalence of knee overuse injuries and their associations with structural changes, particularly in youth skiers. Accordingly, the aim of the present study was to describe the overuse-related knee complaints and MRI abnormalities in a cohort of youth skiers around the growth spurt.Methods108 youth competitive alpine skiers aged 13–15 years were examined using an MRI of both knees, an interview on existing knee complaints and a physical examination. As a common baseline for these assessments, skiers were prospectively monitored by the use of the Oslo Sports Trauma Research Centre questionnaire on health problems over a period of 12 months preceding the major investigations.Results88.0% of the youth skiers showed at least one MRI abnormality in the knees. The most frequent findings were distal femoral cortical irregularities (63%), focal periphyseal oedema (FOPE) zones (25.0%) and cartilage lesions (18.5%). 47.2% of all skiers suffered from at least one overuse-related knee complaint during the 12 months preceding the MRI examination, mostly at the distal and proximal patellar tendon. However, despite a certain association with corresponding MRI abnormalities, the sensitivity of an MRI-based detection of such complaints was strongly limited.ConclusionYouth competitive alpine skiers suffer from a remarkably large number of knee overuse injuries. Accordingly, an effective prevention strategy should include a systematic screening of clinical complaints, ideally already starting around the growth spurt.

Evaluation of Facial Anthropometric Parameters in 11-17 Year Old Boys

2012 ◽  
Vol 37 (1) ◽  
pp. 95-101 ◽  
Author(s):  
A Jahanbin ◽  
N Mahdavishahri ◽  
M Baghayeripour ◽  
H Esmaily ◽  
N Eslami
Keyword(s):  
Statistical Analysis ◽  
Age Groups ◽  
Growth Spurt ◽  
P Value ◽  
Anthropometric Parameters ◽  
Cross Sectional ◽  
Irregular Pattern ◽  
Angular Measurements ◽  
The Face ◽  
Mouth Width

Background and Objective: Anthropometry is the study of qualitative specifications based on linear and angular measurements of human body. The aim of the present study was to determine anthropometric parameters of 11-17 year old boys of northeast Iran. Method: This cross-sectional analytical study was conducted on 583 boys of Fars ethnicity living in Mashhad with Class I skeletal and dental relationships. Digital photographs in natural head position were transferred to a computer and the desired anthropometric landmarks were traced on each image. Anthropometric parameters including the width of the forehead, the width of the face, the width of the cranial base, intergonial width, intercanthal width, binocular width, nasal width, mouth width, facial and nasal height and depth of superior, middle and inferior one-third of the face were measured by “Smile Analyzer” software. ANOVA, Tukey test, and linear regression were used for statistical analysis. Results: Most of the parameters studied increased gradually with age. A growth spurt was evident at the ages of 15-16 years old for binocular width, nasal width, nasal height and depths of middle and inferior one-third of the face. Facial height was among some parameters which were found to increase slightly after 16. Unlike the other parameters, intercanthal width showed an irregular pattern of changes and statistical analysis did not show any significant differences among different age groups (P-value = 0.362). Conclusion: Aging of the face occurs in spurts and at different periods of life. During the studied time span, significant growth in most anthropometric parameters except intercanthal width was obvious.

scholarly journals Child Injury Burden and Risk Profile in a Bangladeshi Rural Community: an Age-Group Related Overview

2021 ◽  
Author(s):  
Nawroz Afreen ◽  
Mallick Masum Billah ◽  
Meerjady Sabrina Flora
Keyword(s):  
Rural Community ◽  
Age Groups ◽  
Working Hours ◽  
Cross Sectional Study ◽  
Risk Profile ◽  
Sectional Study ◽  
Child Injury ◽  
Cross Sectional ◽  
Minor Injury ◽  
Major Injury

Abstract Background:Child injury was a growing public health problem in Bangladesh. Recent information on variation in patterns of non-fatal injury, severity, and risk-profile in rural Bangladeshi children was unavailable. This study aimed to determine current burden of non-fatal injury and risks considering severity in disability-days in child age-groups in a rural community. Methods: This cross-sectional study was conducted in randomly chosen children (<18-year) from selected households of village-clusters with pretested semi-structured questionnaires and checklist for household-environment between May-June 2018 in selected sub-district. Besides descriptive analysis, Chi-square test and Odds Ratio with 95% Confidence Interval (CI) were calculated for identifying risk profiles. An injury was considered minor when regular activities were hampered <30 days and major when ≥30 days. A minor injury must have occurred in the previous three months and a major injury in previous year.Results:For 918 children, prevalence of major and minor injury were 2.4 (95% CI 1.5-3.6) and 7.4 (95% CI 5.8-9.3) with highest in 5-9 and 1-4-year respectively. Commonest pattern was fall injury, followed by cut injury, transport injury and burn for both major and minor type, with variations in age-groups. For major-injury, risks included male gender (OR 4.6, 95% CI 1.5-18.9), dumped garbage (OR 5.0, 95% CI 1.5-26.7), and exclusive/complementary use of non-electric power-source (OR 5, 95% CI 1.2-16.1). For minor-injury, risks for all age groups were ≥5 working hours/day of a mother (OR 2.8, 95% CI 1.2-7.2), supervision of <6 children during her works (OR 3.2, 95% CI 1.05-13) and open fireplaces (OR 3.2, 95% CI 1.3-7.2). When analysis of minor injury considering specific age-groups was done, mothers’ ≥5 working hours and child-supervision were particularly found risky for 1-4 year; open fireplaces for 5-9 year; along with male gender, uneducated mothers for 10-14 year. Conclusions: Prevalence of major and minor injuries were though lower, still required intervention for further reduction and the variabilities in burden, patterns, severity and risks among age-groups could be considered for prioritizing interventions. As risk characteristics were not well established in a cross-sectional study, further case-control study with a qualitative part was recommended for assimilation of risk-profile to guide policy formulation.

Personality's Correlates of Adult Development and Aging

2003 ◽  
Vol 8 (3) ◽  
pp. 131-147 ◽  
Author(s):  
Gian Vittorio Caprara ◽  
Mariagiovanna Caprara ◽  
Patrizia Steca
Keyword(s):  
Personality Traits ◽  
Adult Development ◽  
Self Efficacy ◽  
Age Groups ◽  
Well Being ◽  
Efficacy Beliefs ◽  
Cross Sectional ◽  
Education And Health ◽  
Development And Aging ◽  
And Gender

Three cross-sectional studies examined stability and change in personality over the course of life by measuring the relations linking age to personality traits, self-efficacy beliefs, values, and well-being in large samples of Italian male and female participants. In each study, relations between personality and age were examined across several age groups ranging from young adulthood to old age. In each study, personality constructs were first examined in terms of mean group differences accrued by age and gender and then in terms of their correlations with age across gender and age groups. Furthermore, personality-age correlations were also calculated, controlling for the demographic effects accrued by marital status, education, and health. Findings strongly indicated that personality functioning does not necessarily decline in the later years of life, and that decline is more pronounced in males than it is in females across several personality dimensions ranging from personality traits, such as emotional stability, to self-efficacy beliefs, such as efficacy in dealing with negative affect. Findings are discussed in terms of their implications for personality theory and social policy.

The German Version of the Satisfaction With Life Scale (SWLS)

2011 ◽  
Vol 27 (2) ◽  
pp. 127-132 ◽  
Author(s):  
Heide Glaesmer ◽  
Gesine Grande ◽  
Elmar Braehler ◽  
Marcus Roth
Keyword(s):  
Convergent Validity ◽  
Satisfaction With Life ◽  
Age Groups ◽  
Population Based ◽  
Factorial Invariance ◽  
Satisfaction With Life Scale ◽  
Small Samples ◽  
Cross Sectional ◽  
Confirmatory Factor Analyses ◽  
Life Scale

The Satisfaction with Life Scale (SWLS) is the most commonly used measure for life satisfaction. Although there are numerous studies confirming factorial validity, most studies on dimensionality are based on small samples. A controversial debate continues on the factorial invariance across different subgroups. The present study aimed to test psychometric properties, factorial structure, factorial invariance across age and gender, and to deliver population-based norms for the German general population from a large cross-sectional sample of 2519 subjects. Confirmatory factor analyses supported that the scale is one-factorial, even though indications of inhomogeneity of the scale have been detected. Both findings show invariance across the seven age groups and both genders. As indicators of the convergent validity, a positive correlation with social support and negative correlation with depressiveness was shown. Population-based norms are provided to support the application in the context of individual diagnostics.

Age related volume of cadaver-prostates in Bangladesh

1970 ◽  
Vol 4 (2) ◽  
pp. 74-77
Author(s):  
Rukshana Ahmed ◽  
Shamim Ara
Keyword(s):  
Prostate Gland ◽  
Age Groups ◽  
Clinical Settings ◽  
Cross Sectional ◽  
Medical College ◽  
Age Related ◽  
Group A ◽  
Key Words Prostate ◽  
The Mean ◽  
Group B

Pathological changes in the prostate gland occur commonly with advancing age including inflammation, atrophy, hyperplasia and carcinoma and a change in volume is also evident. Estimation of volume of prostate may be useful in a variety of clinical settings. A cross-sectional descriptive study was designed to see the changes in volume of the prostate with advancing age and done in the Department of Anatomy, Dhaka Medical College, Dhaka from August 2006 to June 2007. The study was performed on 70 post-mortem human prostates collected from the unclaimed dead bodies that were under examination in the Department of Forensic Medicine, Dhaka Medical College, Dhaka. The samples were divided into three age groups; group A (10-20 years), group B (21-40 years) and group C (41-70 years). Volume of the sample was measured by using the ellipsoid formula. The mean ± SD volume of prostate was 7.68 ± 3.64 cm3 in group A, 10.61 ± 3.99 cm3 in group B and 15.40 ± 6.31 cm3 in group C. Mean difference in volume between group A and group C, group B and group C were statistically significant (p<0.001). Statistically significant positive correlation was found between age and volume of prostate (r = + 0.579, p < 0.001). Key Words: Prostate; volume; Bangladeshi. DOI: 10.3329/imcj.v4i2.6501Ibrahim Med. Coll. J. 2010; 4(2): 74-77

A Cross Sectional Survey of Chicken Astroviruses Antibody in Broiler and Sonali (Cross-Bred) Chickens in Selected Areas in Bangladesh

2020 ◽  
Vol 43 (1) ◽  
pp. 75-80
Author(s):  
Md Zulfekar Ali ◽  
Mohammad Moktader Moula ◽  
Zafar Ahmed Bhuiyan ◽  
Muhammad Tariq Javed
Keyword(s):  
Age Groups ◽  
Winter Season ◽  
Cross Sectional Survey ◽  
Cross Sectional ◽  
Blood Samples ◽  
Elisa Kit ◽  
Published Report ◽  
Poultry Birds ◽  
Wide Range ◽  
Group B

AbstractChicken astroviruses (CAstV) are enteric viruses of poultry causing gastroenteritis, malabsorption, gout and white chick disease commonly known as runting-stunting syndrome (RSS). It can affect the wide range of poultry birds, especially chicken, turkey and duck worldwide. To our best knowledge there is no published report on presence of antibodies against CAstV in Bangladesh. Therefore, the study aimed to detect the presence of CAstV antibodies in broilers and sonali chickens (a cross-bread) in Bangladesh through a cross-sectional survey. A total of 454 blood samples from 66 flocks of broiler (n=343) and sonali chickens (n=111) of different ages were obtained during 2017 from four districts. The birds were healthy but were not vaccinated against CAstV. The samples were tested for specific antibodies against CAstV Group B by using commercially available ELISA kit. Overall, 16.74% (76/454) samples and 34.84% (23/66) flocks were positive for CAstV antibodies. The seroprevalence of CAstV was significantly (p=0.001) higher in sonali chickens (36.96%) than broiler (10.20%), while it was significantly higher (p=0.001) in birds of Bogura district (36.94%) than the other three districts. Regarding the age groups, seroprevalence was insignificantly (p=0.192) higher in sonali chicken before laying age (45%) than during laying age (27.45%). Regarding the seasons, CAstV infection was prevalent significantly (p=0.001) higher in winter season. Thus, the present study indicated the presence of CAstV in poultry in Bangladesh, so further studies are required to find out the magnitude of the problem in the country.

Clinical Profile and Outcomes in Patients with Acute Pancreatitis attending a Teaching Hospital at Gandaki Province, Nepal

2020 ◽  
Vol 16 (3) ◽  
Author(s):  
Subash Bhattarai ◽  
Merina Gyawali
Keyword(s):  
Acute Pancreatitis ◽  
Severe Acute Pancreatitis ◽  
Age Groups ◽  
Data Entry ◽  
Kidney Injury ◽  
Severity Index ◽  
Clinical Profile ◽  
Cross Sectional ◽  
Systemic Complications ◽  
Keywords Alcohol

Background: Acute pancreatitis (AP) is inflammatory process of pancreas presenting with acute abdominal pain.The majority of patients have mild disease. Some patients develop local and systemic complications with increased morbidity and mortality. This study was undertaken to describe the clinical profile and outcomes in patients with acute pancreatitis.   Methods:  A cross-sectional hospital based study comprising of 62 consecutive patients with acute pancreatitis were enrolled between Jan 2019 to August 2020. Clinical profile at admission, complications and clinical outcomes including mortality were studied. Patients were classified into mild, moderately severe and severe acute pancreatitis based on revised Atlanta classification and modified CT severity index.  Data entry was done in Statistical Packages for the Social Sciences version 20. Results: The mean age of study subjects was 44±10.87 years with 43 (56%) males and 19 (44%) females (M:F=2.1:1). The commonest etiology of pancreatitis was alcohol (53.2%) followed by biliary pancreatitis (37.1%)  The most common presentation was abdominal pain (100%). The most common complication was pancreatic necrosis (21%) followed by acute kidney injury (19.4%) and pleural effusion (17.3%). Majority( 72.6%) was mild and 17.7% had severe acute pancreatitis. Mortality was seen in 6.5% patients. Mortality was observed in patients with persistent complications, organ failure, low serum calcium and high modified CT severity index.   Conclusions: Alcohol and gallstones were the two main etiologies of acute pancreatitis and were common in males, and in middle age groups. Majority presented with mild severity. Mortality was observed in some patients with severe acute pancreatitis.   Keywords: alcohol; biliary; CT severity index; mortality; outcome; pancreatitis          

CONCENTRATION OF THE SERUM TGF-BETA1 IN HEALTHY ADULT PEOPLE

2014 ◽  
pp. 90-93
Author(s):  
Van Tuan Nguyen ◽  
Tam Vo ◽  
Bui Bao Hoang
Keyword(s):  
Transforming Growth Factor ◽  
Healthy Adult ◽  
Age Groups ◽  
Elevated Serum ◽  
Cross Sectional Study ◽  
Healthy People ◽  
Sectional Study ◽  
Transforming Growth Factor Beta1 ◽  
Cross Sectional ◽  
And Gender

Elevated serum Transforming growth factor-beta1 (TGF-beta1) levels have been linked to tissue fibrosis including chronic kidney disease. Objectives: (1) Investigate serum TGF-beta1 levels in healthy adult people and (2) Examined the relation between serum TGF-beta1 level and gender, age, body mass index (BMI). Method: A cross-sectional study. TGF-beta1 were quantified by ELISA. Results: Levels of serum TGF-beta1 in healthy people were 13,45 ± 7,17 ng/mL mL (0,59 - 33,10 ng/mL). There are no difference of serum TGF-beta1 levels between men and women, between the age groups (<40 years, 40 to < 60 years and ≥ 60 years), between BMI groups < 23 and BMI group ≥ 23. Key words: TGF-beta1, healthy people

The Prevalence of Insecticide Treated Net/malaria :cross section study (Preprint)

2019 ◽  
Author(s):  
Chanda Chalela
Keyword(s):  
Study Design ◽  
Age Groups ◽  
Cross Sectional Study ◽  
Malaria Prevalence ◽  
Malaria Patient ◽  
P Value ◽  
Sectional Study ◽  
Cross Sectional ◽  
Itn Use ◽  
Structured Questionnaire

BACKGROUND ABSTRACT Introduction a study on prevalence of ITN use was carried out in Buchi community Kitwe Zambia from August to October 2019 OBJECTIVE Prevalence of ITN in BUchi METHODS Methodology: This was a cross sectional study design. A structured questionnaire was used to ascertain ownership and utilization and oral interviews, 200 households were targeted 844 individual covered across the 200 households. Data was analyzed with SPSS version 23. RESULTS ABSTRACT Introduction a study on prevalence of ITN use was carried out in Buchi community Kitwe Zambia from August to October 2019 Methodology: This was a cross sectional study design. A structured questionnaire was used to ascertain ownership and utilization and oral interviews, 200 households were targeted 844 individual covered across the 200 households. Data was analyzed with SPSS version 23. Findings: household ownership of at least an ITN was 52% and individual utilization at 37.6%, with 0.825 ITN/households and 0.195ITN /individual. Malaria prevalence of 52.4% /household and a 12.4% of the population. With 47.6% malaria patient coming from households with ITN and 60% of households with ITN have insufficient coverage.61% of malaria patient were female and 31 % male. however there was no significant relation between Gender and malaria prevalence in study area (p value was >0.05). Malaria cases distribution with age groups, 0-15yrs old represented 49.5%, 16-30 yrs., was at 27.6% and the over 30 yrs. case were at 22.9% .use of other preventive measures 23% used mosquito repellent ,others methods 1% with those not using any other methods 76%. CONCLUSIONS Conclusion The study showed clearly that malaria still poses a problem .the prevalence rate of malaria was still high 12.4% of the population and 52.4% of households. With high prevalence of malaria of 49.5% for 0-15yrs.the difference between ownership 52% and Utilization 37.6% showed that even household with ITN, the ITN were not sufficient.60% of households with ITN, the ITN were not sufficient for all occupants

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